{
  "i18n": true,
  "type": "panel",
  "items": {
    "port": {
      "type": "text",
      "label": "Serial Port",
      "help": "Serial Port Help",
      "xs": 12,
      "sm": 12,
      "md": 12,
      "lg": 6,
      "xl": 6,
      "validator": "!!data.port && data.port.trim().length > 0",
      "validatorErrorText": "Serial port is required",
      "validatorNoSaveOnError": true
    },
    "code": {
      "type": "text",
      "label": "DuoFern Stick Code (6 hex digits, e.g. 6Fxxxx)",
      "help": "Stick Code Help",
      "xs": 12,
      "sm": 12,
      "md": 12,
      "lg": 6,
      "xl": 6,
      "validator": "data.code != null && /^6[Ff][0-9A-Fa-f]{4}$/.test(data.code)",
      "validatorErrorText": "Must be exactly 6 hex digits starting with 6F (e.g., 6F1A2B)",
      "validatorNoSaveOnError": true
    }
  }
}